Comment on “Does the 5-2-1 criteria identify patients with advanced Parkinson’s disease? Real-world screening accuracy and burden of 5-2-1-positive patients in 7 countries”

Abstract

Abstract The 5-2-1 criteria are intended to help general neurologists identify patients with advanced Parkinson’s disease who may benefit from treatment optimisation, such as with a device-aided therapy. Although the 5-2-1 criteria claim to address an unmet need, we urge readers to cautiously interpret the results of this validation study.

Keywords

• Advanced Parkinson’s disease
• Device-aided therapy
• 5-2-1 criteria
• Validation
• Positive predictive value